Cylinder-wrench.



PATENVTED JAN. 21, 1908.

H. LUND. CYLINDER WRENCH.

APPLICATION FILED MAY 31, 1905.

' To all ZtYn a/y concern:

-ful. Im roveinents in CylindenWrenches, of

nection with t eshingcylinders; to ti hten hereinafter-described and clei ped.

. the wrench-socket; and Fig. 7 is a. detail of a' 46;,socket 8 is passed through and mounted to is secured against endwise displacement by a the outer end extending beyond the end of HENRY LU D, OF GRAFTON, NORTH DAKOTA,

MENTS, To FOSSTON MANUFAcTURINer COMPANY, or ST. PAUL, MINNESOTA, A CORPORA- {TION OF MINNESOTA.

Be itknown that I, HENRY LUND, a citizen the county of Walsh and tate of North Dakota, have inventedcertain new and usewhich t e followin is a specification.

invention re ates to 1m rovemen'ts 1n. wrenches, desl ed especlally' or useln conand loosen the bolts which secure the cy der teeth in place, and consists particularly-in im rovements in thewrench covered by U.' S. tters Patent No. 644,676 issued to me on March 6, 1900'. To this end my invention consists in the features of construction and combination In; he e an gs forming part 'Of-this spe fioatioml" 1 is a plan view of my'improvedwrenc pairtl broken away; 2 is a side elevation of t e same; Fig. 3 is a section on line :cx of F' 1; Fig. 4 is a detail of the wrenchesocket; ig. 5 is a detail of a ratchet-wheel arranged in connection therewith; Fig. '6 is an end view oflockingl dog. i

In t e drawings-A represents a bar or rod provided at one end. with a transversely extending handle 2,"andat its .other end with, an .Opening'through whicliiextends the stem 3 of the wrench-head- 4. The wrench-head is rotatable inthe end of the bar andis secured against endwise displacement by a pin' 5. The wrench-head projects at approximately a right-angle to the bar A and at its outer end is bifurcated to form the ears 6. The trunnion or stem 7 of' the wrenchrotate in the ears 6 of the wrench-head, and

pin 9. Mounted upon the squared portlon of the stem 7 is a ratchet-wheel 10, the teeth of which are adapted to work in bothdirections. Slidably extending through the stem 3'of' the wrench-head is a dog 11, the inner end of the dog being provided with a tooth 12 to engage with the ratchet-wheel teeth and the stem 3, as shown. The dog is held in engagement with the teeth of the ratchet Wh el by a suitable coil spring 13. The dog 11 rotatable so that the engaging side of the Tooth 12 may be positioned to bear Specification of Letters Patent.

Application filed Hay'Bl. 1905- Serial No. 263,018.

of the United States, residin at Grafton, in I UNITED STATES PATENT OFFICE.

ASSIGNOR, BY DIRECT AND MESNE ASSIGN- CYLINDER-WRENCH.

lfatented Jan. 21, 1908.

against either side of the ratchet-wheel teeth yo determine the' direction of rotation of the wrench-socket. The rojecting end Ofthe dog 11 forms a fingerold to permit. turning of the dog. I

To-set the wrench head in adjusted posi- -tions I provide a detent 14 arran ed in a socket in the end of the-bar A and held forced outwardly by a spring 15 ,into one of the interspaced notches 16 in the adjacent edge of the wrench-head.

In operation, the dog 11 will be turned to engage with theteeth of the ratchet-wheel from the desired side. By then oscillating the bar A, handle 2, and wrench-head the 70' nut may be unscrewed by ratchet action.

When it is desired to unscrew a nut in the opposite ,directionthe dog should be turned to engage with opposite sides of the ratchet- Wheel teeth. By providin an actuating dog of the character shown t e dog is forced outwardly by the teeth of the ratchet-wheel so that when in extreme Outward position it can be easily turned. The construction of wrenc socket, actuating handle, etc. may

be condiderably modified without de arting from y invention,- the scope of w ch is defined in the claims.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, 'is:- I

1. In a wrench, the combination with a wrench-head, of a nut-socket rotatably mounted in said wrench-head and provided with a ratchet, a spring pressed reversible dog'engaging with said ratchet, said dog being rotatable within said wrench-head and provided with a spindle-extending longitudinally through said head.

2. bar, of a wrench-head pivoted thereto, a nutsoeket rotatably mounted in said wrenchhead and provided with aratchet, are versi: ble spring pressed dog rotatable within said wrench-head and engaging with said ratchet, and a spring pressed d etent supported in said bar in position to engage with interspaoed fiotclhes in the adjacent edge of said wrenchear In testimonv whereof Iaffix my signature 105 in presence of two witnesses.

HENRY LUN D.

'Witnesses: 4

H. S. JOHNSON, EMILY F. OTIS.

Ina wrench, the combination with a 

